If you listened much to the cellular telephone companies talk about the ongoing rollout of 5G performance standards for your devices, you might think it was the best thing since sliced bread, canned beer and kissing on the first date. The FAA isn’t so sure, however, and in early November published a Special Airworthiness Information Bulletin (SAIB AIR-21-18), Risk of Potential Adverse Effects on Radio Altimeters, seeking additional information from manufacturers and operators.
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